问题 选择题

爱因斯坦的相对论力学和牛顿力学的关系是( )

A.前者否定了后者

B.前者包容了后者

C.前者补充了后者

D.前者发展了后者

答案

答案:B

题目分析:爱因斯坦的相对论力学和牛顿力学的关系:①相对论打破了牛顿以来传统的绝对时空观。 ②相对论并非全盘否定牛顿力学。牛顿力学反映的是宏观物体低速运动的客观规律,而狭义相对论反映的是物体高速运动的客观规律,是对牛顿力学的继承和发展。 ③牛顿力学是相对论的一种特例(物体低速运动状态),包括在相对论体系中。

点评:还可以从科技发展历程综合考查经典力学和相对论:古代欧洲人一直将亚里士多德的理论当成真理,牛顿力学体系建立后,也一度被看作绝对权威的理论,相对论出现后,解决了经典力学无法解决的难题。这说明(  )

A. 随着社会不断进步,人们会否定更多的真理

B. 社会不断进步,促进社会发展的自然科学理论也不断进步

C. 人类永远无法找到真理    

D. 经典力学体系已经过时,为社会所抛弃

阅读理解
阅读下面的文章和表格,从每题所给的A、B、C三个选项中选出最佳选项。
     Food is very important in our everyday life. What do you know about food? What should we eat for dinner,
fried chicken in a fast restaurant or chicken cooked in the Chinese way? It seems hard to choose.
     Maybe you like fast food very much, but it's not good for your body. If you have too much deep-fried
food, you're more possible to get cancer. Well, it is not just potato chips that are bad for you. There are other
foods that you should worry about, like coke and hot dogs. If you have too much of it, you'll get fat.
     If you want to be healthy, you have to learn which foods are good for you. Scientists divide foods into
five different types: dairy (乳制品)? meat, grains (谷物), fruits and vegetables. No one food has them all.
     So we should eat less meat, oil and more fruits, vegetables, especially the deep-color vegetables.
Vegetables are rich in vitamin A, vitamin C and other nutrients (营养).
Harmful foods Too much 1_______, coke and hot dogs
Different types of foodsDairy, 2_______, grains, fruits and vegetables
Healthy eating habitsLess meat, 3_______ and more fruits, vegetables
Nutrients of 4_______Rich in vitamin A, vitamin C and other nutrients
( )1. A. deep-fried food
( )2. A. fried chicken  
( )3. A. dairy          
( )4. A. meat           
B. fruits
B. meat 
B. oil  
B. oil  
C. deep-color vegetables
C. potato chips         
C. grains               
C. vegetables                                                       
5. Which is the best title of this passage?
A. EAT MORE VEGETABLES
B. HOW TO EAT HEALTHILY
C. MEAT IS BAD
问答题